Sash balance



May 28, 1940. J. A. KRISH 2,202,740

SASH BALANCE Filed Sept. 14, 1938 In venior A itomeys Patented May 28,1940 2,202,740

UNITED STATES PATENT OFFICE SASH BALANCE John A. Krish, T'orrington,Conn.

Application September 14, 1938, Serial No. 229,965

2 Claims. (01. 292 '15) The present invention relates toasash balanceThe edge of the sash is also formed with a and has for its primaryobject to provide a device recess I4 adapted to accommodate a rollersupadapted to produce frictional engagement 106- P Said oll Suppo tembodying Wing D tween the edges of the sash and the sash guide to tionsl6 positioned in the channel l to prevent yieldably hold the sash in itsadjusted position. rotary movement of the roller support in the re- 5 Afurther object is to provide a sash balance cess I4. The roller supportalso includes an designed to eliminate the use of sash cords and openingll, the edges of which are bent inwardly weights, and which alsoprevents binding between as shown at l8 to provide a mounting for theopthe sash and the sash guide due to swelling or posite ends of a pin I9upon which a roller 20 is from paint. journalled. The roller is providedwith flanges 10 A further object is to provide a device of this 2|adjacent its ends and between which the guide character of simple andpractical construction, 9 is positioned, the roller being yieldably heldin which is efiicient and reliable in use, neat and atengagement withthe guide by a coil spring 22 pctractive in appearance, relativelyinexpensive to sitioned in the recess l4 and bearing against themanufacture and otherwise well adapted for the roller support to urgethe same outwardly.

purposes for which the same is intended. In the modified form ofinvention. illustrated Other objects and advantages reside in the deinFig. 4 the roller support designated at 23 has tails of construction andoperation as more fully one edge portion provided witha return bend ashereinafter described and claimed, reference beshown at 24 for engagingthe end convolution 25 ing had to the accompanying drawing forming ofthe spring 26 to secure the spring to the roller 20 part hereof, whereinlike numerals refer to like support.

parts throughout and in which- It is believed the details ofconstruction and Figure 1 is a fragmentary sectional view manner ofoperation of the device will be readily through a window frame and sashshowing the understood from the foregoing without further sash balancein position thereon. detailed explanation. 25

Figure 2 is a fragmentary edge elevational view What is claimed is: v vof the sash. 1. A sash balance fora window sash wherein a Figure 3 is aperspective view of the guide for guide is provided for the sash, saidsash balance the sash and comprising a'roller support adapted for mount-30 Figure 4 is a sectional view of a modified form ing in the sash, saidsupport being formed of 30 of mounting for the roller, sheet metal andhaving portions struck inwardly Referring now to the drawing in detailwherein spaced parallelism, a roller rotatably supported in for thepurpose of illustration I have disclosed on said inwardly struckportions and spring a preferred embodiment of invention the numeansengaging the support for yieldably urging meral 5 designates a windowframe to the inner the roller into engagement with the guide. 35 surfaceof which are secured the spaced guide 2. A sash balance'for a windowsash wherein a strips 6 and I. Also secured to the inner surface guideis provided for the sash, said sash balance of the frame 5 is a metallicWeather strip 8, prefcomprising a roller support adapted for mount-,erably formed'of a pair of duplicate sections as ing in the sash, saidsupport being formed of 40 ShOW in 3 0 the i e of a d sheet metal andhaving portions struck inwardly 40 O S udi an angular guide b 9 p for inspaced parallelism, a roller rotatably supported POSiliiOning in theVertical Channel formed in on said inwardly struck portion and springmeans the edge portion of the sash H, one of said guide engaging thesupport for yjeldably urging th ribs being provided for the lower sashwhile the roller into engagement with the guide Said other of said ribsis provided for the upper sash. t having an edge portion t upon itself d45 One Of the Vertical edges of each Of the Weather projecting betweenthe convolutions of the spring strips 8 is also bent angularly as shownat l2 and t secure t spring to the support.-

cooperate to form the parting strip l3 between the respective sash. JOHNA. KRISH.

